CN219722434U - Flue gas vortex device of denitration system - Google Patents
Flue gas vortex device of denitration system Download PDFInfo
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- CN219722434U CN219722434U CN202320384888.8U CN202320384888U CN219722434U CN 219722434 U CN219722434 U CN 219722434U CN 202320384888 U CN202320384888 U CN 202320384888U CN 219722434 U CN219722434 U CN 219722434U
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- flue gas
- turbulent flow
- middle rod
- bottom cover
- spoiler
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 239000003546 flue gas Substances 0.000 title claims abstract description 54
- 239000007789 gas Substances 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 abstract description 15
- 238000006555 catalytic reaction Methods 0.000 abstract description 5
- 239000003245 coal Substances 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 239000011324 bead Substances 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000003916 acid precipitation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a flue gas turbulent flow device of a denitration system, which comprises a flue gas pipeline and a reducing agent pipeline, wherein an outlet of the reducing agent pipeline is arranged in the flue gas pipeline, a turbulent flow mechanism is arranged at the outlet of the flue gas pipeline, and a driving mechanism is arranged at the lower end of the turbulent flow mechanism; the utility model has simple structure and reasonable design, the flow speed of the gas at the gas outlet end of the flue gas pipeline can be accelerated by rotating the rotating middle rod, the direction of the gas flow can be changed by connecting the wind shield with the splitter blade, so that the gas collides with the spoiler, the effect of fully mixing the gas is achieved, the subsequent catalytic reaction is more facilitated, the denitration effect is improved, on the other hand, the motor is used as an output element to provide power for the rotation of the rotating middle rod, the speed of the gas flow is accelerated, and the rotating sealing ring is arranged at the rotating connection position of the bottom cover, the top cover and the rotating middle rod, so that the environment inside and outside can be effectively isolated, and the pollution to the environment caused by the leakage of the flue gas is prevented.
Description
Technical Field
The utility model relates to the technical field of denitration, in particular to a flue gas turbulent flow device of a denitration system.
Background
China is the largest coal producing country and consuming country in the world, and accounts for 25% of the world's coal yield. The energy structure of China means that the air pollution of China is mainly coal smoke, and the existing atmospheric pollutants generated by coal combustion of China account for a large pollutant emission proportion, for example, sulfur dioxide accounts for 87%, nitrogen oxides account for 67%, carbon monoxide accounts for 71% and smoke dust accounts for 60%. The direct combustion of coal in large quantities causes a rapid increase in pollutant discharge, resulting in a rapid increase in sulfur dioxide and nitrogen oxides in the air, which are the main atmospheric pollutants, and are the main substances causing acid precipitation and photochemical pollution, and the acid rain, which is known as a main form of acid precipitation, so that the tail gas at the tail end of a boiler needs to be subjected to denitration treatment after coal burning.
At present, in the running process of an SCR denitration system, the mixing uniformity of an added reducing agent and flue gas directly influences the denitration efficiency, and a turbulent flow device is usually arranged after an adding point to achieve the aim of uniformly mixing the flue gas. The common turbulence device is a common static mixer, turbulence is carried out on the flue gas by locally reducing the sectional area of the flue and increasing the wind speed, and certain requirements are met on the flow speed.
Disclosure of Invention
The utility model aims to provide a flue gas turbulent flow device of a denitration system, which is provided with a turbulent flow mechanism, the flow speed of gas at the gas outlet end of a flue gas pipeline can be increased by rotating a rotating middle rod, and the direction of the gas flow can be changed by connecting a wind shield with a splitter blade, so that the gas collides with the turbulent flow plate, the effect of fully mixing the gas is achieved, the subsequent catalytic reaction is facilitated, and the denitration effect is improved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the flue gas turbulent flow device of the denitration system comprises a flue gas pipeline and a reducing agent pipeline, wherein an outlet of the reducing agent pipeline is arranged in the flue gas pipeline, a turbulent flow mechanism is arranged at the outlet of the flue gas pipeline, and a driving mechanism is arranged at the lower end of the turbulent flow mechanism;
the vortex mechanism comprises:
the lower end face of the bottom cover is communicated with the outlet of the flue gas pipeline through a through hole, and the upper end face of the side wall of the bottom cover is provided with an annular groove;
the upper end face of the upper cover is provided with an annular convex block matched with the annular groove;
the two ends of the rotating middle rod are respectively connected with the central parts of the bottom cover and the top cover in a rotating way through bearings, the lower end of the rotating middle rod is connected with the driving mechanism, the side surface of the rotating middle rod is connected with a plurality of flow dividing blades and a wind shield, and the upper end and the lower end of the wind shield are respectively connected with the upper end and the lower end of the flow dividing blades;
the side of the spoiler is fixedly connected with the inner side wall of the bottom cover.
Preferably, the driving mechanism includes:
the motor is arranged at the lower end of the bottom cover, and the output end of the motor is fixedly connected with the rotary middle rod;
the rotary sealing ring is arranged at the rotary joint of the bottom cover, the top cover and the rotary middle rod.
Preferably, the splitter blade is arc-shaped.
Preferably, the spoiler forms an included angle of 45-90 degrees with the upper end surface of the inner side of the bottom cover.
Preferably, a diversion hole for diversion of gas is formed in the inner side of the spoiler.
Preferably, the upper end of the splitter vane is higher than the spoiler.
Preferably, an air outlet for the outflow of the flue gas is arranged on the side face of the top cover.
Compared with the prior art, the utility model has the beneficial effects that:
1. through being provided with vortex mechanism, through rotating the velocity of flow that rotates the middle pole and can accelerate flue gas pipeline gas outlet end gas, through the diverter blade of deep bead connection can change the air current direction for gas collides with the spoiler, thereby reaches the effect of intensive mixing gas, more helps subsequent catalytic reaction, promotes the effect of denitration;
2. through being provided with actuating mechanism, can be for the rotation of rotation center pole through regard as the output unit with the motor and provide power, the speed of accelerating air current places rotatory sealing washer in the rotation junction of bottom, top cap and rotation center pole, can effectively isolate the environment of inside and outside, prevents that the flue gas from leaking outward and causing the pollution to the environment.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the present utility model after the bottom cover and the top cover are separated;
FIG. 3 is a schematic view of the internal structure of the present utility model;
FIG. 4 is a schematic view of a connection structure of a rotating center lever and a splitter vane according to the present utility model;
FIG. 5 is a schematic diagram of the connection structure of the flue gas pipeline and the reducing agent pipeline in the utility model;
fig. 6 is an enlarged schematic view of the structure at a in fig. 3.
In the figure: 1. a flue gas duct; 2. a reducing agent conduit; 3. a turbulence mechanism; 301. a bottom cover; 3011. an annular groove; 302. a top cover; 3021. an annular bump; 303. rotating the middle rod; 304. a splitter blade; 305. a wind deflector; 306. a spoiler; 4. a driving mechanism; 401. a motor; 402. rotating the sealing ring; 5. a deflector aperture; 6. and an air outlet.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number" is two or more, unless explicitly defined otherwise.
Examples
Referring to fig. 1-6, the flue gas turbulence device of the denitration system provided by the utility model comprises a flue gas pipeline 1 and a reducing agent pipeline 2, wherein an outlet of the reducing agent pipeline 2 is positioned in the flue gas pipeline 1, a turbulence mechanism 3 is arranged at the outlet of the flue gas pipeline 1, and a driving mechanism 4 is arranged at the lower end of the turbulence mechanism 3;
the spoiler mechanism 3 comprises a bottom cover 301, a top cover 302, a rotating middle rod 303 and a spoiler 306, wherein the lower end surface of the bottom cover 301 is communicated with the outlet of the flue gas pipeline 1 by a through hole, the upper end surface of the side wall of the bottom cover 301 is provided with an annular groove 3011, the lower end surface of the top cover 302 is provided with an annular projection 3021, the annular projection 3021 is mutually embedded with the annular groove 3011, two ends of the rotating middle rod 303 are respectively and rotatably connected with the central parts of the bottom cover 301 and the top cover 302 through bearings, the lower end of the rotating middle rod 303 is fixedly connected with the driving mechanism 4, the side surface of the rotating middle rod 303 is connected with a plurality of splitter blades 304 and a wind deflector 305, the upper end and the lower end of the wind deflector 305 are respectively connected with the upper end and the lower end of the rear splitter blade 304 of the front end splitter blade 304, the spoiler 306 is fixed on the upper end of the inner side of the bottom cover 301, the side surface of the spoiler 306 is fixedly connected with the inner side wall of the bottom cover 301, when carrying out the vortex, emit flue gas and reducing gas by the exit of flue gas pipeline 1, drive through actuating mechanism 4 and rotate middle lever 303, rotate middle lever 303 can make by supreme air current down through splitter blade 304 and deep bead 305 when rotating, the other side is because the establishment of deep bead 305 makes the flue gas unable direct upward flow, can only flow out and strike the spoiler 306 face through the side, the air current upwards flows from air outlet 6 after striking the face, in the vortex in-process, can accelerate the velocity of flow of flue gas pipeline 1 gas outlet end gas through rotating middle lever 303, can change the air current direction through the splitter blade 304 of deep bead 305 connection, make gas and spoiler 306 collide, thereby reach the effect of intensive mixing gas, more help subsequent catalytic reaction, promote the effect of denitration.
The driving mechanism 4 comprises a motor 401 and a rotary sealing ring 402, the motor 401 is arranged at the lower end of the bottom cover 301, the output end of the motor 401 is fixedly connected with the rotary middle rod 303, the rotary sealing ring 402 is arranged at the rotary connection position of the bottom cover 301, the top cover 302 and the rotary middle rod 303, when the driving mechanism 4 rotates, the motor 401 rotates and drives the rotary middle rod 303 to rotate, and meanwhile, the splitter blades 304 and the wind shield 305 on the side face of the rotary middle rod 303 are driven to rotate, so that the air flow speed of the inner space of the bottom cover 301 and the top cover 302 is increased, the rotary sealing ring 402 is arranged at the rotary connection position of the bottom cover 301, the top cover 302 and the rotary middle rod 303, the environment of the inner part and the outer part can be effectively isolated, and pollution to the environment caused by external leakage of smoke is prevented.
The splitter blade 304 is arc, through setting up splitter blade 304 to the mobility that the arc can increase gas, reinforcing flue gas and reducing gas's mixed effect for subsequent reaction is more abundant, and the denitration effect is better.
The spoiler 306 forms an included angle of 75 degrees with the upper end surface of the inner side of the bottom cover 301, and the spoiler 306 and the upper end surface of the inner side of the bottom cover 301 are arranged to form an included angle of 75 degrees, so that the upward flow guiding effect on the gas can be realized, the gas flow is assisted, and the flow resistance is reduced.
The deflector hole 5 is arranged on the inner side of the spoiler 306, and the gas can be guided by arranging the deflector hole 5 on the inner side of the spoiler 306, so that a flowing space is reserved between the spoiler 306 and the spoiler 306, and secondary turbulence can be carried out on the flue gas and the reducing gas, and the turbulence effect is improved.
The vertex height of the splitter vane 304 is higher than the vertex height of the spoiler 306, and the vertex position of the splitter vane 304 is higher than the vertex position of the spoiler 306, so that the air flowing direction above the splitter vane 304 is not influenced by the spoiler 306, and the air flows out of the air outlet 6 of the top cover 302 smoothly.
The side of the top cover 302 is provided with an air outlet 6 for the outflow of the flue gas, and the side of the top cover 302 is provided with the air outlet 6 so that the flue gas can flow out along the air outlet 6 on the side.
The working principle of the utility model is as follows:
the motor 401 is required to be started when the flue gas turbulent flow device of the denitration system is used, then flue gas and reducing gas are introduced, the motor 401 drives the rotating middle rod 303 to rotate at the moment, the rotating middle rod 303 can accelerate the flow from bottom to top through the split blades 304 and the wind shields 305 while rotating, the flue gas cannot flow directly upwards due to the arrangement of the wind shields 305 on the other side, the flue gas can only flow out through the side surface and can impact the surface of the turbulent flow plate 306, the air flow upwards flows out of the air outlet 6 after impacting the surface, the turbulent flow effect is achieved, the device can accelerate the flow rate of the air at the air outlet end of the flue gas pipeline 1 by rotating the rotating middle rod 303, the split blades 304 are connected through the wind shields 305 to change the air flow direction, the air collides with the turbulent flow plate 306, the effect of fully mixed gas is achieved, the subsequent catalytic reaction is facilitated, the denitration effect is improved, on the other hand, the motor 401 is used as an output element to provide power for the rotation of the rotating middle rod 303, the speed of accelerating the air flow is accelerated, and the rotating top cover 302 and the rotating joint of the rotating middle rod 303 is placed with the rotating sealing ring 402, so that the environment is effectively prevented from polluting the environment and polluting the environment.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a flue gas vortex device of denitration system, includes flue gas pipeline (1) and reductant pipeline (2), its characterized in that: the outlet of the reducing agent pipeline (2) is arranged in the flue gas pipeline (1), a turbulent flow mechanism (3) is arranged at the outlet of the flue gas pipeline (1), and a driving mechanism (4) is arranged at the lower end of the turbulent flow mechanism (3);
the spoiler mechanism (3) comprises a bottom cover (301), a top cover (302), a rotating middle rod (303) and a spoiler (306);
the lower end face of the bottom cover (301) is communicated with an outlet of the flue gas pipeline (1) through a through hole, and an annular groove (3011) is formed in the upper end face of the side wall of the bottom cover (301);
an annular projection (3021) matched with the annular groove (3011) is arranged on the lower end surface of the top cover (302);
the two ends of the rotating middle rod (303) are respectively and rotatably connected with the central parts of the bottom cover (301) and the top cover (302) through bearings, the lower end of the rotating middle rod (303) is connected with the driving mechanism (4), the side surface of the rotating middle rod (303) is connected with a plurality of flow dividing blades (304) and a wind shield (305), and the upper end and the lower end of the wind shield (305) are respectively connected with the upper end and the lower end of the flow dividing blades (304);
the side surface of the spoiler (306) is fixedly connected with the inner side wall of the bottom cover (301).
2. The flue gas turbulent flow device of a denitration system according to claim 1, wherein: the driving mechanism (4) comprises a motor (401), a rotary sealing ring (402),
The motor (401) is arranged at the lower end of the bottom cover (301), and the output end of the motor (401) is fixedly connected with the rotating middle rod (303);
the rotary sealing ring (402) is arranged at the rotary connection part of the bottom cover (301), the top cover (302) and the rotary middle rod (303).
3. The flue gas turbulent flow device of a denitration system according to claim 1, wherein: the splitter blades (304) are arcuate.
4. The flue gas turbulent flow device of a denitration system according to claim 1, wherein: the spoiler (306) forms an included angle of 45-90 degrees with the upper end surface of the inner side of the bottom cover (301).
5. The flue gas turbulent flow device of a denitration system according to claim 1, wherein: the inner side of the spoiler (306) is provided with a diversion hole (5) for guiding gas.
6. The flue gas turbulent flow device of a denitration system according to claim 1, wherein: the upper ends of the splitter blades (304) are higher than the spoiler (306).
7. The flue gas turbulent flow device of a denitration system according to claim 1, wherein: an air outlet (6) for the outflow of the flue gas is arranged on the side face of the top cover (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320384888.8U CN219722434U (en) | 2023-03-05 | 2023-03-05 | Flue gas vortex device of denitration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320384888.8U CN219722434U (en) | 2023-03-05 | 2023-03-05 | Flue gas vortex device of denitration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219722434U true CN219722434U (en) | 2023-09-22 |
Family
ID=88063832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320384888.8U Active CN219722434U (en) | 2023-03-05 | 2023-03-05 | Flue gas vortex device of denitration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219722434U (en) |
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2023
- 2023-03-05 CN CN202320384888.8U patent/CN219722434U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240618 Address after: No. 36 Xinfeng North Road, Liuzhu Village, Xinjian Town, Yixing City, Wuxi City, Jiangsu Province, 214100 Patentee after: Wuxi Tianzhicheng Heat Exchange Equipment Co.,Ltd. Country or region after: China Address before: 214100 No. 26, Xichang Road, Yanqiao street, Huishan District, Wuxi City, Jiangsu Province Patentee before: Wuxi Hesheng environmental protection equipment Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |